82565874044 has 6 divisors (see below), whose sum is σ = 144490279584. Its totient is φ = 41282937020.

The previous prime is 82565874043. The next prime is 82565874109. The reversal of 82565874044 is 44047856528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82565874043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10320734252 + ... + 10320734259.

It is an arithmetic number, because the mean of its divisors is an integer number (24081713264).

Almost surely, 2^82565874044 is an apocalyptic number.

It is an amenable number.

82565874044 is a deficient number, since it is larger than the sum of its proper divisors (61924405540).

82565874044 is a wasteful number, since it uses less digits than its factorization.

82565874044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20641468515 (or 20641468513 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 53.

The spelling of 82565874044 in words is "eighty-two billion, five hundred sixty-five million, eight hundred seventy-four thousand, forty-four".